e46 m3 leaking coolant

[YEGAN]

hey guys

yesterday morning i went to the car and theres a puddle of coolant on the floor, so left it for the day and stripped the under splash tray in the afternoon when i got back from work. it seems to be dripping from somewhere above the crank pulley. i take it its the waterpump?

or can it be just a seal or gasket? its a 2003 with 162k on the clock, how long do these waterpumps last?

p.s. i did check all hoses and they are fine

 

[kabal]

probably time for an overhaul. new waterpump and thermostat, possibly a new fan clutch, while you have it all out. not a terribly tough job to do, you can do it in your garage in an afternoon, but a little pricey, the waterpump and clutch arent cheap

Thermostat - 115 313 182 74 - R431
Thermostat to waterpump o-ring - 115 313 184 02 - R38
Thermostat to engine o-rings x2 - 115 378 307 09 - R86
Waterpump - 115 178 381 59 - R5393
Waterpump o-rings x2 - 115 378 307 12 - No stock in ZA, but it is a 18x3, which I got from Bearing Man (4 for R5)
Waterpump gasket - 115 178 310 99 - R96
Fan Clutch - 115 278 316 19 - R2334
Water temp sensor - 136 214 330 77 - R303
Engine block water drain plug gasket - 071 199 632 25 - R1.60
5 Litres BMW Coolant - 821 529 121 52 - R265
9 Litres Distilled Water - Diskem - R60

http://www.bmwfanatics.co.za/showthread.php?tid=28049&pid=295603#pid295603